Guyong (PSGC: 031423009) is one of the twenty-four barangays comprising the municipality of Santa Maria, Bulacan, in the Philippines. It is bordered by Barangay Sta. Clara on the south-west, Poblacion on the south, Balasing and Pulong Buhangin on the east, San Jose Patag in the south-east, Caysio on the north, and Barangay Manggahan and Sta. Cruz on the west.